Ethyl 4-(difluoromethyl)-5-methoxy-2-methylpyridine-3-carboxylate
3-(Difluoromethyl)-4-methoxy-2-methylpyridine-5-carbonyl chloride
Ethyl 4-(difluoromethyl)-5-methoxy-3-methylpyridine-2-carboxylate
Ethyl 4-(difluoromethyl)-3-methoxy-2-methylpyridine-6-carboxylate